- Companies
- Property developers
- Cardiff
- M Green Insulation Ltd
M Green Insulation Ltd
- Company number
- 15706981
- Incorporated
- 7 May 20242 years trading
- Registered office
- 474 Cowbridge Road East, Cardiff, South Glamorgan, CF5 1BJ
- Nature of business
- Development of building projects; Construction of domestic buildings; Other construction installation
M Green Insulation Ltd is a 2-year-old private limited company registered in Cardiff, company number 15706981, one of 407 property development companies in Cardiff. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Where M Green Insulation Ltd is registered
The registered office is in Cardiff (CF5), in the Cardiff local authority area, Wales. Show CF5 1BJ on a map.
Other trade companies in CF5
- Art Electrical Solutions LimitedElectricians
- Chapman Construction Cardiff LtdBuilders
- MN Projects Co. LtdBuilders
- Bridge Deck Solutions LtdCivil engineering
- Gilps Construction LtdPainters and decorators
- CF Window Cleaning LtdCleaning companies
- RK Fire and Electrical LtdElectricians
- BDL Cleaning LtdCleaning companies
Also registered at this address
14 other companies use the same registered office as M Green Insulation Ltd.
- Asguard LimitedSpecialist contractors
- Check Out Cleaning LtdCleaning companies
- FRS Refrigeration LtdMachinery repair and installation
- Gwent Auto Locksmith LtdMotor traders
- HGH Trade LimitedProperty developers
- Hira Holdings LimitedBuilders
- JVJ Roofing and Building LtdFinishing trades
- London Maintenance Call Out LtdPlumbers and heating engineers
- Luxury Driveways & Patios LtdInstallers
- Raa Group LtdBuilders
- SW Commercial Vehicles LtdMotor traders
- Tobermore Paving Developments LtdFinishing trades
- Top Tier Roofcare LtdRoofers
- Vehicle Trade Sales LimitedMotor traders
What happens if M Green Insulation Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 15706981
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 May 2024 (2 years ago)
- Registered office
- 474 Cowbridge Road East, Cardiff, South Glamorgan, CF5 1BJ
- Nature of business
- Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 22 April 2026
- Previous names
- NSL Trading Sales Limited (until 17 Apr 2026)
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Cardiff
Other active property development companies registered in Cardiff.
- Mably Investment Limited1994
- Mace Construct Group Limited2026
- Madley Property Limited2005
- Magpie Projects & Development Limited2026
- Marquis & Sons Ltd2025
- MDBH Ltd2025
- Med Development Ltd2019
- Mib International Construction Ltd2017
All property development companies in Cardiff · All trades in Cardiff · Property developers across the UK
Frequently asked questions
When are M Green Insulation Ltd's accounts due?
M Green Insulation Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is M Green Insulation Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is M Green Insulation Ltd still trading?
M Green Insulation Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does M Green Insulation Ltd do?
M Green Insulation Ltd is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is M Green Insulation Ltd?
M Green Insulation Ltd was incorporated on 7 May 2024, 2 years ago.
What is the penalty if M Green Insulation Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View M Green Insulation Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.